Improvement in cooking-stoves



3 SheetS--'Sh=eet1. J. SEGONDY & M. RAVOLD.

Improvement in Cooking-Stoves.

N0.H4 2()-8 Fig.1. 2 Patented April 25,1871.

Wiim s s e s Inventorswoafi M 4 f Atty:

3Sheets--Sheet2. J. SEGONDY & M. RAVOLD.

vimprovement in Cooking-Stoves.

No. 114,208. Pat'ented April 25,1871.

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JEAN SEGONDY AND-MICHEL RAVOLI), OF ST. LOUIS,

MISSOURI.

Letters Patent No. 114,208, dated April 25, 1871.

IMPROVEMENT IN GOOKING-STOVES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be it known that we, JEAN Suoonnr and MICHEL RAVOLD, of St. Louis city, in the county of St. Louis and in the State of Missouri, have invented certain new and useful Improvements in Cooking-Stoves; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to. the accompanying drawing making a part of this specification, in which- Figure l is a plan view of the upper side of our improved stove;:

Figure 2 is a like view of the same with the top plate removed;

Figures 3 and 4 are elevations of opposite sides of said stove;

Figure 5 is a vertical longitudinal section on the lines at x of figs. l and 2; and

Figure 6 is a vertical cross-section of the lines 2 z of said figures.

Letters of like name and kind refer to like parts in each of the figures.

Our invention is an improvement in cooking-stoves; and

It consists, principally, in extending the combustion-chamher outward beyond the front end of the stove so as to furnish space for two or more additional boiler-holes upon or wit-hinthe top plate. substantially as hereinafter shown and described. 1

It further consists in the arrangement of the fuelchamber with relation to the boiler-holcs and within the oven, substantially as and for the purpose hereinafter specified.

it finally consists in the relative arrangement of-the oven, fuel-chamber, and fines, substantially as and for the purpose hereinafter shown.

In the annexed drawing A represents the top plate and B the bottom plate of the stove, connected together in the usual manner by means of the side plates 0 and D and the front and rear end plates E and F respectively.

The top plate A is extended forward over the hearth G so as to give room for two extra boiler-holes, H, in addition to those usually provided, 1; and the space K beneath said extended portion is inclosed at its sides by aprolongation of the side plates 0 and D, and beneath and in front by means of the front end plate .E, which, from a point midway between said hearth and top plate, extends forward and upward, as seen in figs. 3, 4, and 5.

The space within the external casing of the stove is divided horizontally by means of the top oven-plate L, placed at a suitable distance below the top plate A, so as to leave the necessary space for the top fines L, and by the bottom oven-plate M placed at a short distance above the bottom plate B, which latter plate upper portion of which, by means of suitable fire-plates O and a grate, P, forms the fuel-chamber Q, while the lower portion of said space, together with the space beneath the llG3I'lJl],'fOl'll1S a receptacle, R, for ashes and other refuse from the coal that pass downward throughsaid grate.

The rear end of the oven is cut off from the interior of the stove by means of a vertical plate, S, between which and the rear'end plate F is left a space which is. divided into three equal spaces, '1 and U, the former situated upon the outersidc and forming the descend ing lines, while the latter or center space is used for the ascending column of the heated escaping products of combustion.

The fuel-chamber Q being placed at one side'of the stove it becomes necessary to cause the heated gases to pass to theopposite side before passing rearward, in order that the heat may be equally distributed.

This result is accomplished bv means of a vertical flue-strip, V, which, filling the space between the top plate A and the top oven-plate L, extends rearward along the inner side of the fuel-chamber near its rear end; from thence curves rearward and outward until.

nearly one-half the distance from said fuel-chamber to the opposite side of the stove is reached, and then,

turning sharply backward, extends in a straight line to the side plate D.

A second flue-strip, W, extending in a curve inward and slightly forward from the side plate 0, atthe intersect-ion of the rear oven-plate S, and a damper, X, corresponding in length to the transverse size of the ascending-flue U, and so hinged at its lower end to or upon a prolongation, l, of the top oven-plate L as to permit of its being turned forward, as seen in fig. 5,

and close the entrance from the front to said flue, complctes the system of tines, the operation of which is as follows: I

The damper being closed, the heated escaping products of cfombustion pass laterally outward from the fuel-chaznl'ser to or near the opposite side of the stove,

. from thence backward around the flue-strip V to the center transversely of the top oven-flue L, from whence, dividing, the current passes into and through the diving-fines T and into the bottom oven-flue N, wherev said currents unite and pass upward through the asupon the same, so as to be capable of being turned outward and downward, and is provided upon its lower edge with a lug, a, which, extending downward, rests against the lower side of the bottom plate of said chute when said door is turned downward, and holds the latter in a horizontal position.

Immediately beneath the chute Z is a narrow openinginclosed by means of a door, B, hinged at one end to or upon the side plate, through which access may he-had to the lower side of the grate.

The oven upon the same side of the stove as the fuel-chamber is inclosed by a door, 0', hinged at its lower edge to the side plate D, and held in place, when closed, by means of a gravity-latch, D, which, as seen in fig. 3, has the form of a crescent, with a straight bar extending radially outward from its center, one end of said crescent being pivoted to the face of said door, while said bar passes through a suitable guard, 0, upon the edge thereof, and engages with a notched lug, cl, projecting outward from said side plate D.

It will be seen that, as the latch is pivoted upon the side of the lug-that contains the notch, the weight of said catch will cause it to remain in engagement with said lug unless purposely released therefrom.

It being desirable that the door should not drop below a horizontal line, twochains, E, are attached at one end to its inner face, near each outercorner, and, at their opposite ends, to the front and rearplates of the oven, and, having a suitable length, sustain said door, when opened, in the desired position.

Upon the opposite side of the stove the oven has a different shape by'reason of its extension forward over the ash-pit and alongside of the fuel-chamber, and,

consequently, is 'inclosedby means of two. doors, F.

and G, hinged, respectively, at the front and rear sides of said oven. to or upon the .side plate 0, and secured together, when closed, by means of an ordinary latch, H, pivoted upon the face of the rear door G, and engaging with a notched lug, f, projectingoutward fromthe face of the front door 1 A flue-stop, I, placed at the rear end of the ash-pit, and communicating with the front end of bottom ovenflue N, and a vertically-sliding damper, K, provided within the front end plate E, immediately above the hearth, completes the stove, the operation of which will be readily understood. e

The especial advantages obtained by this construction of a stove are First, by means of the comparatively small fuelchamber an equal amount of work can be accomplished with less fuel than would be possible if said chamber extended, as usual, across the entire front of the stove.

Second the extended top plate largely increases the capacity of the combustion-chamber and enables two additional boiler-holes to be used for cooking purposes or for heating water without material increase in the amount of fuel consumed.

Third, the arrangement of the fines above the oven causes the heated escapingproducts of combustion to pass beneath all of the boiler-holes situated in rear of the fuel-chamber, and thus renders practicable the employment of a small fuel'chamber placed at one side of the stove.

.Having thus fully set forth the nature and merits of our invention,

What we claim as new is- 1. In a cooking-stove provided with rear and bottom oven-flues a combustiou-chamber, extended outward beyond the front of said stove,'substantially as and forthe purpose shown.

2. The arrangement of the fuel-chamber Q within the oven and with relation to the boiler-holes, substantially as shown, and for the purpose specified.

3. The relative arrangement of the oven M, the fuel-chamber Q, and the flues L, N, T, and U, substantially as shown, and for the purpose specified;

In testimony that we claim the foregoing we have lllgreunto .set our hands this 21st day of .February, 71; r MICHEL .RAVOLD.

JEAN SEGONDY.

Witnesses 'ALEXANDER L0 wRY,

HENRY Barnes. 

